With snow flurrying down in NYC, it was a perfect night for Valentino to reveal his #AllWhiteEverything couture collection in honor of the label's new flagship opening on Fifth Avenue. The Sala Bianca 945 Celebration was held at the site of the former Whitney Museum (which is currently in the process of moving to its new downtown location), featuring a stylish fête, Fornasetti installation, and full-on runway show. Guests including Katie Holmes, Emma Roberts, Olivia Munn, and Anna Wintour took in the exclusive new collection, while Giovanna Battaglia was among those who took to Instagram to give everyone an inside look. Click through for more photos from the event and see who was sitting in the coveted front row!